cola/main.py

   1 # Copyright(C) 2008, David Aguilar <davvid@gmail.com>
   2
   3 import optparse
   4 import sys
   5 import os
   6
   7 from cola import utils
   8 from cola import version
   9
  10 def main():
  11     parser = optparse.OptionParser(usage='%prog [options]')
  12
  13     parser.add_option('-v', '--version',
  14                       help='Show cola version',
  15                       dest='version',
  16                       default=False,
  17                       action='store_true')
  18     parser.add_option('-s', '--style',
  19                       help='Applies an alternate stylesheet.  '
  20                            'The allowed values are: "dark" or a file path.',
  21                       dest='style',
  22                       metavar='PATH or STYLE',
  23                       default='')
  24     parser.add_option('-r', '--repo',
  25                       help='Specifies the path to a git repository.',
  26                       dest='repo',
  27                       metavar='PATH',
  28                       default=os.getcwd())
  29     opts, args = parser.parse_args()
  30
  31     if opts.version or 'version' in args:
  32         print "cola version", version.version
  33         sys.exit(0)
  34
  35     repo = os.path.realpath(opts.repo)
  36     if not os.path.isdir(repo):
  37         print >> sys.stderr, "fatal: '%s' is not a directory.  Consider supplying -r <path>.\n" % repo
  38         sys.exit(-1)
  39     os.chdir(opts.repo)
  40
  41     try:
  42         # Defer these imports to allow git cola --version without pyqt installed
  43         from PyQt4 import QtCore
  44         from PyQt4 import QtGui
  45     except ImportError:
  46         print >> sys.stderr, 'Sorry, you do not seem to have PyQt4 installed.'
  47         print >> sys.stderr, 'Please install it before using cola.'
  48         print >> sys.stderr, 'e.g.:    sudo apt-get install python-qt4'
  49         sys.exit(-1)
  50     from cola import qtutils
  51
  52     class ColaApplication(QtGui.QApplication):
  53         """This makes translation work by throwing out the context."""
  54         wrapped = QtGui.QApplication.translate
  55         def translate(*args):
  56             trtxt = unicode(ColaApplication.wrapped('', *args[2:]))
  57             if trtxt[-6:-4] == '@@': # handle @@verb / @@noun
  58                 trtxt = trtxt[:-6]
  59             return trtxt
  60
  61     app = ColaApplication(sys.argv)
  62     QtGui.QApplication.translate = app.translate
  63     app.setWindowIcon(QtGui.QIcon(utils.get_icon('git.png')))
  64     locale = str(QtCore.QLocale().system().name())
  65     qmfile = utils.get_qm_for_locale(locale)
  66     if os.path.exists(qmfile):
  67         translator = QtCore.QTranslator(app)
  68         translator.load(qmfile)
  69         app.installTranslator(translator)
  70
  71     if opts.style:
  72         # This loads the built-in and user-specified stylesheets.
  73         # We allows absolute and relative paths to a stylesheet
  74         # by assuming that non-file arguments refer to a built-in style.
  75         if os.path.isabs(opts.style) or os.path.isfile(opts.style):
  76             filename = opts.style
  77         else:
  78             filename = utils.get_stylesheet(opts.style)
  79
  80         try:
  81             # Automatically register each subdirectory in the style dir
  82             # as a Qt resource directory.
  83             dirname = os.path.dirname(filename)
  84             resource_paths = []
  85             resource_paths.extend(utils.get_resource_dirs(dirname))
  86             for r in resource_paths:
  87                 basename = os.path.basename(r)
  88                 QtCore.QDir.setSearchPaths(basename, [r])
  89             stylesheet = open(filename, 'r')
  90             style = stylesheet.read()
  91             stylesheet.close()
  92             app.setStyleSheet(style)
  93         except:
  94             print >> sys.stderr, ("warn: '%s' is not a valid style."
  95                                   % opts.style)
  96
  97     from cola.models import Model
  98     from cola.views import View
  99     from cola.controllers import Controller
 100
 101     model = Model()
 102     view = View(app.activeWindow())
 103
 104     valid = model.use_worktree(repo)
 105     while not valid:
 106         gitdir = qtutils.opendir_dialog(view, 'Open Git Repository...', os.getcwd())
 107         if not gitdir:
 108             sys.exit(-1)
 109         valid = model.use_worktree(gitdir)
 110
 111     os.chdir(model.git.get_work_tree())
 112     ctl = Controller(model, view)
 113     view.show()
 114     sys.exit(app.exec_())